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sys, dll: Security

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This commit is contained in:
Bill Zissimopoulos 2016-02-17 12:39:53 -08:00
parent 9514bcfd8c
commit e3ed7a9a2c
7 changed files with 67 additions and 3 deletions
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1
build/VStudio/winfsp_dll.vcxproj
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@ -34,6 +34,7 @@
<ClCompile Include="..\..\src\dll\dispatch.c" />
<ClCompile Include="..\..\src\dll\ntstatus.c" />
<ClCompile Include="..\..\src\dll\path.c" />
<ClCompile Include="..\..\src\dll\security.c" />
<ClCompile Include="..\..\src\dll\volinfo.c" />
</ItemGroup>
<ItemGroup>

3
build/VStudio/winfsp_dll.vcxproj.filters
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@ -58,6 +58,9 @@
<ClCompile Include="..\..\src\dll\dispatch.c">
<Filter>Source</Filter>
</ClCompile>
<ClCompile Include="..\..\src\dll\security.c">
<Filter>Source</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<None Include="..\..\src\dll\ntstatus.i">

15
inc/winfsp/fsctl.h
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@ -230,6 +230,17 @@ typedef struct
} Label;
} Info;
} SetVolumeInformation;
struct
{
UINT64 UserContext;
UINT64 UserContext2;
} QuerySecurity;
struct
{
UINT64 UserContext;
UINT64 UserContext2;
FSP_FSCTL_TRANSACT_BUF SecurityDescriptor;
} SetSecurity;
} Req;
FSP_FSCTL_TRANSACT_BUF FileName; /* {Create,Cleanup,SetInformation/{Disposition,Rename}} */
FSP_FSCTL_DECLSPEC_ALIGN UINT8 Buffer[];
@ -283,6 +294,10 @@ typedef struct
{
FSP_FSCTL_VOLUME_INFO VolumeInfo;
} SetVolumeInformation;
struct
{
FSP_FSCTL_TRANSACT_BUF SecurityDescriptor;
} QuerySecurity;
} Rsp;
FSP_FSCTL_DECLSPEC_ALIGN UINT8 Buffer[];
} FSP_FSCTL_TRANSACT_RSP;

12
inc/winfsp/winfsp.h
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@ -88,6 +88,14 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
FSP_FSCTL_TRANSACT_REQ *Request,
PVOID FileNode,
PWSTR FileName, PWSTR NewFileName, BOOLEAN ReplaceIfExists);
NTSTATUS (*GetSecurity)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
PVOID FileNode,
PSECURITY_DESCRIPTOR SecurityDescriptor, SIZE_T *PSecurityDescriptorSize);
NTSTATUS (*SetSecurity)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
PVOID FileNode,
PSECURITY_DESCRIPTOR SecurityDescriptor);
} FSP_FILE_SYSTEM_INTERFACE;
typedef struct _FSP_FILE_SYSTEM
{
@ -186,6 +194,10 @@ FSP_API NTSTATUS FspFileSystemOpQueryVolumeInformation(FSP_FILE_SYSTEM *FileSyst
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
FSP_API NTSTATUS FspFileSystemOpSetVolumeInformation(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
FSP_API NTSTATUS FspFileSystemOpQuerySecurity(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
FSP_API NTSTATUS FspFileSystemOpSetSecurity(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
static inline
NTSTATUS FspAccessCheck(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,

6
src/dll/create.c
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@ -19,7 +19,7 @@ FSP_API PGENERIC_MAPPING FspGetFileGenericMapping(VOID)
return &FspFileGenericMapping;
}
static NTSTATUS FspGetSecurity(FSP_FILE_SYSTEM *FileSystem,
static NTSTATUS FspGetSecurityByName(FSP_FILE_SYSTEM *FileSystem,
PWSTR FileName, PUINT32 PFileAttributes,
PSECURITY_DESCRIPTOR *PSecurityDescriptor, SIZE_T *PSecurityDescriptorSize)
{
@ -93,7 +93,7 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
break;
}
Result = FspGetSecurity(FileSystem, Prefix, 0,
Result = FspGetSecurityByName(FileSystem, Prefix, 0,
&SecurityDescriptor, &SecurityDescriptorSize);
FspPathCombine(FileName, Remain);
@ -118,7 +118,7 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
}
}
Result = FspGetSecurity(FileSystem, FileName, &FileAttributes,
Result = FspGetSecurityByName(FileSystem, FileName, &FileAttributes,
&SecurityDescriptor, &SecurityDescriptorSize);
if (!NT_SUCCESS(Result))
goto exit;

2
src/dll/dispatch.c
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@ -49,6 +49,8 @@ FSP_API NTSTATUS FspFileSystemCreate(PWSTR DevicePath,
FileSystem->Operations[FspFsctlTransactQueryVolumeInformationKind] = FspFileSystemOpQueryVolumeInformation;
FileSystem->Operations[FspFsctlTransactSetVolumeInformationKind] = FspFileSystemOpSetVolumeInformation;
// !!!: ...
FileSystem->Operations[FspFsctlTransactQuerySecurityKind] = FspFileSystemOpQuerySecurity;
FileSystem->Operations[FspFsctlTransactSetSecurityKind] = FspFileSystemOpSetSecurity;
FileSystem->Interface = Interface;
*PFileSystem = FileSystem;

31
src/dll/security.c Normal file
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@ -0,0 +1,31 @@
/**
* @file dll/security.c
*
* @copyright 2015 Bill Zissimopoulos
*/
#include <dll/library.h>
FSP_API NTSTATUS FspFileSystemOpQuerySecurity(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
{
NTSTATUS Result;
if (0 == FileSystem->Interface->GetSecurity)
return STATUS_INVALID_DEVICE_REQUEST;
(VOID)Result;
return STATUS_INVALID_DEVICE_REQUEST;
}
FSP_API NTSTATUS FspFileSystemOpSetSecurity(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
{
NTSTATUS Result;
if (0 == FileSystem->Interface->SetSecurity)
return STATUS_INVALID_DEVICE_REQUEST;
(VOID)Result;
return STATUS_INVALID_DEVICE_REQUEST;
}